Easy Egg and Potato Breakfast Casserole (Vegetarian Recipe)
Delicious and so satisfying, this Egg and Potato Breakfast Casserole is a simple breakfast option that’s both easy to prepare and perfect for any occasion. This dish is not only a crowd-pleaser for family gatherings or special brunches like Christmas morning, but it’s also simple enough to whip up for a hearty weekend breakfast. Its combination of fresh ingredients and cheesy goodness makes it an absolutely delicious way to start your day.
This post contains affiliate links. As an Amazon Affiliate, if you purchase through those links, I earn a small commission. Thank you!
Why You Will Love Making Egg and Potato Breakfast Casserole
- This cheesy egg and potato breakfast casserole is straightforward to make, saving you time and effort, especially on busy holiday mornings or when preparing for a large group.
- Whether it’s a cozy family breakfast, a special holiday morning like Christmas, or a potluck brunch, this casserole fits perfectly, and is likely to become one of your most favorite breakfast casseroles.
- Feel free to add your favorite veggies! This is a versatile dish that can cater to many different tastes.
- Packed with shredded potatoes, eggs, and cheese, this casserole is a fulfilling meal that will keep you energized throughout the morning.
- Not only is it delicious fresh out of the oven, but it also reheats well, making it a great option for meal prep or enjoying leftovers.
Ingredients You’ll Need
You’ll need all the ingredients in the photograph below.
How to Make Egg and Potato Breakfast Casserole
A complete printable recipe and the measurements in both US customary and metric are available in the recipe card below.
Preparing the Vegetables and Hash Browns
Start by preheating your oven to 180ºC (356ºF). Then, in a non-stick skillet, heat the olive oil over medium heat. Add the sliced bell peppers and sauté them for about 7-10 minutes, or until they start to soften.
Next, add the shredded hash browns to the skillet and continue cooking for another 7-10 minutes. This step is crucial for getting those hash brown potatoes nicely browned and crispy.
Mixing the Casserole Ingredients
Once your fresh potatoes and peppers are cooked, transfer them to a large bowl. Crack the eggs into the bowl with the potato and pepper mixture, breaking them up as you stir everything together.
Now, add in the baby spinach, halved cherry tomatoes, peas, sour cream, shredded cheddar cheese, and milk.
Season with salt and pepper to taste. Give it all a good mix to ensure that the ingredients are well combined and the flavors meld together.
Baking the Casserole
Pour the egg mixture into a prepared baking dish (I love these casserole dishes). You can lightly grease the casserole dish beforehand to prevent sticking.
Spread the mixture evenly in the dish, and bake in the preheated oven for about 35 minutes, or until the casserole is golden brown on top and set in the middle.
Once baked, let the casserole sit in its dish for a few minutes before serving. This resting time allows it to set, making it easier to cut into portions.
Serve warm and enjoy the hearty, comforting flavors of your homemade egg and potato breakfast casserole!
Recipe Notes and Expert Tips
- Baking Dish: A standard 9×13 inch dish works well for this recipe. If your dish is deeper or shallower, adjust the cooking time accordingly – a deeper dish may require more time, while a shallower one might cook quicker.
- Can I use different types of cheese in this recipe? Definitely! Feel free to experiment with different types of shredded cheese. Swiss cheese, Monterey Jack cheese, or Pepper Jack cheese are all great options that can add a different flavor profile to your casserole, choose your favorite cheese and give it a try.
- Other Additions: Feel free to add vegetarian breakfast sausage, or leftover vegan ham for extra protein. You can also add more fresh veggies like mushrooms or red bell peppers, and sprinkle some green onions over the top as a garnish. For a healthier twist, use skim milk and low-fat cheese.
- Seasoning: A dash of garlic powder, some fresh herbs, or a sprinkle of paprika can add an extra flavor dimension to your casserole. Tasting and adjusting the seasoning of the egg mixture before baking is a good practice, just remember that the cheese will add some saltiness too.
- Make-Ahead: For an easy morning, assemble the cheesy potato casserole the night before and refrigerate it. Just cover it tightly with plastic wrap or aluminum foil. In the morning, remove it from the fridge while you preheat the oven, then bake as directed.
How to Store Leftover Cheesy Potato Breakfast Casserole
If you find yourself with leftovers of this delicious cheesy breakfast potato casserole with eggs, here’s how to store them effectively:
- Refrigerate Promptly: Cool the egg bake to room temperature and then cover it with plastic wrap or aluminum foil. You can also transfer it to an airtight container. It will keep in the refrigerator for up to 3-4 days and delicious the next morning.
- Reheating: To reheat, simply place the desired amount in the microwave, covered, for a minute or two, or until heated through. You can also reheat it in the oven at 350°F for about 10-15 minutes. If using the oven, covering with foil can prevent it from drying out.
- Freezing for Longer Storage: This easy breakfast casserole can be frozen for up to 2 months. Cut it into individual portions, wrap each piece tightly with plastic wrap, and then place them in a freezer-safe bag or container. Thaw overnight in the refrigerator before reheating.
What to Serve with Egg Casserole
This breakfast casserole comes into its own when paired with my delicious suggestions that will please the whole family.
Breads and Pastries
A selection of bread, such as French Bread, Air Fryer Toast, or croissants, can be a great addition to mop up any delicious eggy mixture.
For a sweeter touch, pastries or muffins can also be served.
Vegetarian Sides
For a vegetarian-friendly meal, consider adding sides like air fryer mushrooms, air fryer tomatoes, or baked beans, which are delicious with this veggie egg casserole.
And for a sweeter option, how about a fresh fruit salad? These ideas not only add variety but also ensure that there’s something for everyone at the table.
More Breakfast Casseroles For You To Try
- Easy Egg Casserole
- Overnight Air Fryer French Toast Casserole
- Cheesy Hashbrown Casserole
- Homemade French Toast Casserole
Easy Egg and Potato Breakfast Casserole (Vegetarian Recipe)
Ingredients
- 1 tablespoon olive oil
- ½ red bell pepper sliced
- ½ green bell pepper sliced
- ½ yellow bell pepper sliced
- 2 cups hash browns
- 6 eggs
- 3 cups baby spinach
- ½ cup cherry tomatoes halved
- ¼ cup peas
- ¼ cup sour cream
- ½ cup cheddar cheese shredded
- ½ cup milk
- Salt and pepper to taste
Instructions
- Preheat the oven to 180ºC.
- In a non-stick skillet, heat the olive oil and add the peppers and cook for 7-10 minutes or until they start to soften. Add the hash browns and cook for 7-10 more minutes.1 tablespoon olive oil, ½ red bell pepper, ½ green bell pepper, ½ yellow bell pepper, 2 cups hash browns
- Transfer the potato and peppers mixture to a bowl and add the eggs, break them while you mix everything together.6 eggs
- Add the spinach, cherry tomatoes, peas, sour cream, cheese, milk, salt and pepper. Mix well.3 cups baby spinach, ½ cup cherry tomatoes, ¼ cup peas, ¼ cup sour cream, ½ cup cheddar cheese, ½ cup milk, Salt and pepper to taste
- Transfer to a baking dish and bake for 35 minutes, or until golden brown.
Notes
- Baking Dish: A standard 9×13 inch dish works well for this recipe. If your dish is deeper or shallower, adjust the cooking time accordingly – a deeper dish may require more time, while a shallower one might cook quicker.
- Can I use different types of cheese in this recipe? Definitely! Feel free to experiment with different types of shredded cheese. Swiss cheese, Monterey Jack cheese, or Pepper Jack cheese are all great options that can add a different flavor profile to your casserole.
- Other Additions: Feel free to add vegetarian breakfast sausage, or leftover vegan ham for extra protein. You can also add more veggies like mushrooms or bell peppers, and sprinkle some green onions over the top as a garnish. For a healthier twist, use skim milk and low-fat cheese.
- Seasoning: A dash of garlic powder, some fresh herbs, or a sprinkle of paprika can add an extra flavor dimension to your casserole. Tasting and adjusting the seasoning of the egg mixture before baking is a good practice, just remember that the cheese will add some saltiness too.
- Make-Ahead: For an easy morning, assemble the cheesy potato casserole the night before and refrigerate it. Just cover it tightly with plastic wrap or aluminum foil. In the morning, remove it from the fridge while you preheat the oven, then bake as directed.
Storage & Reheating
- Refrigerate Promptly: Cool the egg bake to room temperature and then cover it with plastic wrap or aluminum foil. You can also transfer it to an airtight container. It will keep in the refrigerator for up to 3-4 days.
- Reheating: To reheat, simply place the desired amount in the microwave, covered, for a minute or two, or until heated through. You can also reheat it in the oven at 350°F for about 10-15 minutes. If using the oven, covering with foil can prevent it from drying out.
- Freezing for Longer Storage: This easy breakfast casserole can be frozen for up to 2 months. Cut it into individual portions, wrap each piece tightly with plastic wrap, and then place them in a freezer-safe bag or container. Thaw overnight in the refrigerator before reheating.
Nutrition
Disclaimer
Please note that nutrient values are estimates only. Variations can occur due to product availability and manner of food preparation. Nutrition may vary based on methods of origin, preparation, freshness of ingredients, and other factors.
